Oscillating brittle and viscous behavior through the earthquake cycle in the Red River Shear Zone: Monitoring flips between reaction and textural softening and hardening

• Published in: Tectonophysics Vol. 587; pp. 46 - 62
• Main Authors: Wintsch, Robert P., Yeh, Meng-Wan
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 05.03.2013
• Subjects: Brittleness; Diancang Shan; Earthquake cycle; Hardening; Mica; Muscovite; Quartz; Reaction hardening; Reaction softening; Red River shear zone; Softening; Textural softening; Texture; Veins; Canada, Manitoba, Red R; China, People's Rep., Yunnan Prov; Textural softening; Reaction softening; Diancang Shan; Reaction hardening; Earthquake cycle; Red River shear zone

Microstructures associated with cataclasites and mylonites in the Red River shear zone in the Diancang Shan block, Yunnan Province, China show evidence for both reaction hardening and softening at lower greenschist facies metamorphic conditions. The earliest fault-rocks derived from Triassic porphyr...